Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/7014#discussion_r34903555
--- Diff: core/src/main/scala/org/apache/spark/TaskEndReason.scala ---
@@ -127,6 +146,19 @@ case class ExceptionFailure(
}
}
+class ThrowableSerializationWrapper(var exception: Throwable) extends
Serializable {
+ private def writeObject(out: ObjectOutputStream): Unit = {
+ out.writeObject(exception)
+ }
+ private def readObject(in: ObjectInputStream): Unit = {
+ try {
+ exception = in.readObject().asInstanceOf[Throwable]
+ } catch {
+ case _ : ClassNotFoundException | _ : IOException => // exception is
null
--- End diff --
We could log the error at warning level so users know why they're not
seeing the actual exception.
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